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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Preferable Use of Hybrid Cement in Concrete Intended for Industrial Applications
Author(s): I. Janotka, P. Martauz and Michal Bačuvčík
Publication: Special Publication
Appears on pages(s): 2.1-2.14
Keywords: alkali-silica reaction, concrete, hybrid cement; strength, shrinkage
Abstract:Important properties of the novel hybrid cement, H-Cement, are due to the use of fly ash, metallurgical slag, alkaline waste water from red mud deposits and ordinary portland clinker. H-Cement saves around 80 % of CO2 emissions compared to ordinary portland cement (OPC) production and enables effective recovery and safe disposal of industrial wastes. H-Cement is suitable for the preparation of ready-mixed
concretes of strength classes between C8/10 (1160/1450 psi) and C30/37 (4350/5370 psi) and as a shrinkage reducing and alkali-silica reaction (ASR)-mitigation agent. This cement provides a slight expansion-reducing effect in permanent water curing at 20 °C (68 °F) and an evident shrinkage-reducing effect in permanent dry curing at 20 °C (68 °F) / 60 % R. H. and 40 °C (104 °F) / 15 % R. H. -air relative to OPC. The ASR is suppressed at 20 °C (68 °F) and 40 °C (104 °F) / 100 % R. H. -air cure.
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